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Subject: Re: [PATCH] drm/amd/display: fix incompatible structure layouts
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     Alex Deucher <alexander.deucher@amd.com>,
        =?UTF-8?Q?Christian_K=c3=b6nig?= <christian.koenig@amd.com>,
        "David (ChunMing) Zhou" <David1.Zhou@amd.com>,
        David Airlie <airlied@linux.ie>,
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        amd-gfx@lists.freedesktop.org,
        dri-devel <dri-devel@lists.freedesktop.org>
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From:   Harry Wentland <harry.wentland@amd.com>
Message-ID: <0e880a52-768e-c476-84a5-3e9638b62f1b@amd.com>
Date:   Fri, 2 Feb 2018 11:08:03 -0500
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On 2018-02-02 11:02 AM, Arnd Bergmann wrote:
> On Fri, Feb 2, 2018 at 4:39 PM, Harry Wentland <harry.wentland@amd.com> wrote:
>> On 2018-02-02 07:31 AM, Arnd Bergmann wrote:
>>> Building the amd display driver with link-time optimizations revealed a bug
>>
>> Curious how I'd go about building with link-time optimizations.
> 
> I got the idea from last week's LWN article on the topic, see
> https://lwn.net/Articles/744507/. I needed the latest gcc version to
> avoid some compiler bugs, and a few dozen kernel patches on top
> to get a clean build in random configurations (posted them all today).
> 
> Most normal configurations probably work out of the box, but I have
> not actually tried running any ;-)
> 

Thanks. Learn something new every day. I like this bit from the article:

> So it is basically just like if it concatenated all source files into a single one and made everything static.

Probably not a bad idea to think that way when doing kernel development. :)

Harry

>        Arnd
>